Authentication service (costs cut by 99%)
Prem Bitkowski
Backend Engineer
Cloud Infrastructure Architect
Frontend Engineer
Amazon DynamoDB
AWS Lambda
Node.js
Project Overview
Migrated a client's authentication system from Auth0 to a custom solution, dramatically reducing costs from $100,000+ annually to $100 monthly while managing 600,000 user accounts.
Key Achievements
99.9% cost reduction in authentication services
Seamless migration of 600,000 user accounts
Implemented staged rollout with fallback plans for each platform
Technology Stack
Backend: Node.js, TypeScript, Passport.js
Database: Amazon DynamoDB
Hosting: AWS Lambda
Email Service: SendGrid
Frontend: React, React Native (existing codebases)
Technical Implementation
Developed a custom authentication solution using Passport.js and Node.js
Utilized AWS Lambda and DynamoDB for a scalable, cost-effective infrastructure
Integrated SendGrid for transactional emails
Modified multiple frontend codebases (React, React Native) to work with the new auth system
Designed and executed a staged rollout strategy with fallback options for each platform
